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The Bel Power Solutions LRS20-28-900G is an AC-DC subrack system designed for demanding railway and subway applications. It operates with a wide input voltage range of 85 to 264 VAC and provides a stable 28 VDC output at up to 20 A.
This power supply system is built to withstand harsh environments, featuring a rugged design and convection cooling. It operates reliably within an extended temperature range of -40°C to 71°C. The system is compliant with key railway standards including EN 50155 and EN 50121-4, as well as safety standards IEC/EN 62368-1 and UL/CSA 60950-1.
Key features include high isolation (3000 VAC) between outputs and chassis, hot-swappable capability, and support for battery charging with temperature sensors. The 19-inch rack system is designed for easy integration and redundant configurations. Its dimensions are 173.7 x 106.34 x 128.4 mm.
85-264 VAC.
28 VDC at 20 A.
-40°C to 71°C.
Chassis mount.
3000 VAC.
60950-1 and 62368-1.